摘要：对某人来说做某事-例: It’s dangerous for children to play football in the street. 对孩子来说在街上踢足球是很危险的. It’s good for us to take more exercise. 对我们来说多运动是有益的. It’s very kind of you to say so. 你这样说真是太好了. It’s very kind of you to help me. 你真好.肯帮我. 该句式中.引导动词不定式的逻辑主语的介词用for还是of.主要取决于前面的形容词.如果形容词是描述动词不定式的行为者的性格.品质的.如:kind, good, nice, wrong, right, clever, careless, foolish等.应用of,如果形容词仅仅是描述事物.不是对动词不定式的行为者的品质进行评价的.就用for. 常见这类形容词有difficult, easy, hard, important, dangerous等. It’s wrong of you to do it. 你做这件事是错的. It’s hard for you to be a lawyer. 对你来说做律师很困难.

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